Seismic response distribution expressions for on‐ground rigid rocking blocks under ordinary ground motions

2021 ◽  
Author(s):  
Athanasia K. Kazantzi ◽  
Christos G. Lachanas ◽  
Dimitrios Vamvatsikos
Keyword(s):  
Seismic Response ◽  
Ground Motions ◽  
Response Distribution

Effects of Fling Step and Forward Directivity on Seismic Response of Buildings

2006 ◽  
Vol 22 (2) ◽  
pp. 367-390 ◽  
Author(s):  
Erol Kalkan ◽  
Sashi K. Kunnath
Keyword(s):  
Seismic Response ◽  
Ground Motions ◽  
High Amplitude ◽  
Moment Frames ◽  
Steel Moment Frames ◽  
Damage Potential ◽  
Near Fault ◽  
Forward Directivity ◽  
Fling Step ◽  
Far Fault

This paper investigates the consequences of well-known characteristics of near-fault ground motions on the seismic response of steel moment frames. Additionally, idealized pulses are utilized in a separate study to gain further insight into the effects of high-amplitude pulses on structural demands. Simple input pulses were also synthesized to simulate artificial fling-step effects in ground motions originally having forward directivity. Findings from the study reveal that median maximum demands and the dispersion in the peak values were higher for near-fault records than far-fault motions. The arrival of the velocity pulse in a near-fault record causes the structure to dissipate considerable input energy in relatively few plastic cycles, whereas cumulative effects from increased cyclic demands are more pronounced in far-fault records. For pulse-type input, the maximum demand is a function of the ratio of the pulse period to the fundamental period of the structure. Records with fling effects were found to excite systems primarily in their fundamental mode while waveforms with forward directivity in the absence of fling caused higher modes to be activated. It is concluded that the acceleration and velocity spectra, when examined collectively, can be utilized to reasonably assess the damage potential of near-fault records.

Seismic response of electrical equipment subjected to high–frequency ground motions

2021 ◽  
Vol 374 ◽  
pp. 111046
Author(s):  
Sugandha Singh ◽  
Abhinav Gupta
Keyword(s):  
Seismic Response ◽  
High Frequency ◽  
Ground Motions ◽  
Electrical Equipment

Seismic response of shield tunnel subjected to spatially varying earthquake ground motions

2018 ◽  
Vol 77 ◽  
pp. 216-226 ◽  
Author(s):  
Yu Miao ◽  
Erlei Yao ◽  
Bin Ruan ◽  
Haiyang Zhuang
Keyword(s):  
Seismic Response ◽  
Ground Motions ◽  
Shield Tunnel ◽  
Earthquake Ground Motions ◽  
Spatially Varying

Seismic response of clay-pile-raft-superstructure systems subjected to far-field ground motions

2017 ◽  
Vol 101 ◽  
pp. 209-224 ◽  
Author(s):  
Lei Zhang ◽  
Huabei Liu
Keyword(s):  
Seismic Response ◽  
Ground Motions ◽  
Far Field

Seismic Response of Parallel Double Pipelines to Longitudinal Ground Motions

2022 ◽  
Vol 13 (1) ◽  
Author(s):  
Junyan Han ◽  
Zhike Guo ◽  
M. Hesham El Naggar ◽  
Liyun Li ◽  
Yi Shuai ◽  
...  
Keyword(s):  
Seismic Response ◽  
Ground Motions
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